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Max Shtein - InventionShare. Ann Arbor, MI, US

Max Shtein Max Shtein

Professor | University of Michigan

Ann Arbor, MI, UNITED STATES

Professor of Materials Science and Engineering
University of Michigan

Biography

A professor at University of Michigan, he works in the fields of applied physics, chemical engineering, macromolecular science and engineering, and materials science and engineering.

Education (2)

University of California Berkeley: B.S., Chemical Engineering 1998

Princeton University: Ph.D., Chemical Engineering 2004

Patents (21)

Process and apparatus for organic vapor jet deposition

US7431968

2008-10-07

A method of fabricating an organic film is provided. A non-reactive carrier gas is used to transport an organic vapor. The organic vapor is ejected through a nozzle block onto a cooled substrate, to form a patterned organic film. A device for carrying out the method is also provided. The device includes a source of organic vapors, a source of carrier gas and a vacuum chamber. A heated nozzle block attached to the source of organic vapors and the source of carrier gas has at least one nozzle adapted to eject carrier gas and organic vapors onto a cooled substrate disposed within the vacuum chamber.

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Organic devices having a fiber structure

US7561772

2009-07-14

A photoactive fiber is provided, as well as a method of fabricating such a fiber. The fiber has a conductive core including a first electrode. An organic layer surrounds and is electrically connected to the first electrode. A transparent second electrode surrounds and is electrically connected to the organic layer. Other layers, such as blocking layers or smoothing layers, may also be incorporated into the fiber. The fiber may be woven into a cloth.

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Method of fabricating an optoelectronic device having a bulk heterojunction

US7419846

2008-09-02

A method of fabricating an organic optoelectronic device having a bulk heterojunction comprises the steps of: depositing a first layer over a first electrode by organic vapor phase deposition, wherein the first layer comprises a first organic small molecule material; depositing a second layer on the first layer such that the second layer is in physical contact with the first layer, wherein the interface of the second layer on the first layer forms a bulk heterojunction; and depositing a second electrode over the second layer to form the optoelectronic device. In another embodiment, a first layer having protrusions is deposited over the first electrode, wherein the first layer comprises a first organic small molecule material. For example, when the first layer is an electron donor layer, the first electrode is an anode, the second layer is an electron acceptor layer, and the second electrode is a cathode. As a further example, when the first layer is an electron acceptor layer, the first electrode is a cathode, the second layer is an electron donor layer, and the second electrode is an anode.

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Increasing the lateral resolution of organic vapor jet deposition by using a confining guard flow

EP1978570

2008-10-08

The present invention relates to a method and apparatus for depositing material.

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Method of manufacturing high-mobility organic thin films using organic vapor phase deposition

US6734038

2004-05-11

A method of employing organic vapor phase deposition to fabricate a polycrystalline organic thin film is described. By employing organic vapor phase deposition at moderate deposition chamber pressures and substrate temperatures, a polycrystalline organic thin film results having significantly larger purity and grain size than what is achievable by vacuum thermal evaporation. These polycrystalline organic thin films may be employed in a variety of applications, including, for example, organic light emitting devices, photovoltaic cells, photodetectors, lasers, and thin film transistors.

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Device and method for organic vapor jet deposition

US7897210

2011-03-01

A device and a method for facilitating the deposition and patterning of organic materials onto substrates utilizing the vapor transport mechanisms of organic vapor phase deposition is provided. The device includes one or more nozzles, and an apparatus integrally connected to the one or more nozzles, wherein the apparatus includes one or more source cells, a carrier gas inlet, a carrier gas outlet, and a first valve capable of controlling the flow of a carrier gas through the one or more source cells. The method includes moving a substrate relative to an apparatus, and controlling the composition of the organic material and/or the rate of the organic material ejected by the one or more nozzles while moving the substrate relative to the apparatus, such that a patterned organic layer is deposited over the substrate.

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Self-aligned hybrid deposition

US6716656

2004-04-06

A method of fabricating an organic device is provided. A first layer is deposited over a substrate through a mask by a first process that results in the first layer having a first area of coverage. A second layer is then deposited over the substrate through the mask by a second process that results in the second layer having a second area of coverage that is different from the first area of coverage.

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Process for organic vapor jet deposition

EP1423552

2015-10-21

A method of fabricating an organic film is provided. A non-reactive carrier gas is used to transport an organic vapor. The organic vapor is ejected through a nozzle block onto a cooled substrate, to form a patterned organic film. A device for carrying out the method is also provided. The device includes a source of organic vapors, a source of carrier gas and a vacuum chamber. A heated nozzle block attached to the source of organic vapors and the source of carrier gas has at least one nozzle adapted to eject carrier gas and organic vapors onto a cooled substrate disposed within the vacuum chamber.

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Method of fabricating an optoelectronic device having a bulk heterojunction

EP1735841

2016-11-02

The present invention generally relates to a method of fabricating an optoelectronic device. More specifically, it is directed to a method of fabricating an optoelectronic device including a bulk heterojunction.

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Method and apparatus for depositing material using a dynamic pressure

US8535759

2013-09-17

A method of depositing organic material is provided. A carrier gas carrying organic material is ejected from a nozzle at a flow velocity that is at least 10% of the thermal velocity of the carrier gas, such that the organic material is deposited onto a substrate. In some embodiments, the dynamic pressure in a region between the nozzle and the substrate surrounding the carrier gas is at least 1 Torr, and more preferably 10 Torr, during the ejection. In some embodiments, a guard flow is provided around the carrier gas.

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Fiber-based electric device

US8155497

2012-04-10

A method of manufacturing a fiber-based electric apparatus includes providing an elongate, flexible fiber core and layering an electric device on the fiber core.

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Solid state light source based on hybrid waveguide-down-converter-diffuser

US8768108

2014-07-01

A solid state light source comprising a light pump outputting light energy; a waveguide optically coupled to the light pump source for receiving the light energy; and a down-converter for converting the light energy from the waveguide to a lesser light energy.

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Reflective tandem solar cell

US20110253200

2011-10-20

A novel solar cell architecture consisting of multiple fiber-based photovoltaic (PV) cells. Each PV fiber element is designed to maximize the power conversion efficiency within a narrow band of the incident solar spectrum, while reflecting other spectral components through the use of optical microcavity effects and distributed Bragg reflector (DBR) coatings. Combining PV fibers with complementary absorption and reflection characteristics into volume-filling arrays produces an array of spectrally tuned solar cells with an effective dispersion element intrinsic to the architecture, resulting in high external quantum efficiency over the visible spectrum.

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Scanning device with a probe having an organic material

US20090134025

2009-05-28

A probe for a scanning device having an anode, a cathode, and an organic material. The organic material is positioned between the anode and the cathode. The organic material is operable for at least one of emitting and detecting light by an electrical bias applied between the anode and the cathode.

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Fiber-based electric device

US7970242

2011-06-28

A fiber-based electric apparatus includes an elongate, flexible fiber core. The apparatus also includes an electric device layered on the fiber core.

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Methods to enhance bioavavailability of organic small molecules and deposited films made therefrom

US20180296494

2018-10-18

Solid films and articles having a surface with discrete regions patterned with a deposited low molecular weight organic compound, such as pharmaceutical actives and new chemical entities, are provided. The organic compound may be present at ≥about 99 mass % in the one or more discrete regions and may be crystalline or amorphous. The deposited organic compound may be deposited as a film having high surface area. The deposited organic compound exhibits enhanced solubility and bioavailability, by way of non-limiting example. Methods of organic vapor jet printing deposition method of such a low molecular weight organic compound in an inert gas stream are also provided.

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Method and apparatus for depositing material with high resolution

US20050214452

2005-09-29

A device is provided. The device includes a base, and a reservoir disposed in the base. The reservoir is defined by a cladding and the base, and has an opening with a largest dimension of about 200 nm or less, more preferably 100 nm or less, and most preferably 60 nm or less. A material may be disposed within the reservoir. The base may be attached to a position control apparatus that may control the position of the base with an accuracy on the order of nanometers. The position control apparatus may include an atomic force microsope and/or a near field scanning optical microscope. The base may also be coupled to an energy application apparatus that may apply energy to the material. The device may be used to deposit material onto a substrate with a very high resolution, on the order of a few molecules across. The device may also be used to remove material from a substrate with a very high resolution by transmitting energy through the base. A device used for such removal may or may not include a reservoir.

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Methods of forming hydrogenated metalloid compositions via polymerization

US20090226355

2009-09-10

Methods of producing semiconductor materials via polymerization techniques are provided. The methods include reacting a precursor compound containing a metalloid semiconductor element, such as silicon or germanium, with a catalyst to form a polymer composition. The polymer precursor is then decomposed to form an electrically conductive hydrogenated composition containing silicon or germanium. The methods employ relatively safe raw materials and products and result in high yield reactions. Moreover, the polymers can be applied in liquid form and can be used as an “ink” or liquid to selectively coat a substrate.

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Surface plasmon-mediated energy transfer of electrically-pumped excitons

US9114981

2015-08-25

An electrically pumped light emitting device emits a light when powered by a power source. The light emitting device includes a first electrode, a second electrode including an outer surface, and at least one active organic semiconductor disposed between the first and second electrodes. The device also includes a dye adjacent the outer surface of the second electrode such that the second electrode is disposed between the dye and the active organic semiconductor. A voltage applied by the power source across the first and second electrodes causes energy to couple from decaying dipoles into surface plasmon polariton modes, which then evanescently couple to the dye to cause the light to be emitted.

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Autonomous solar tracking in flat-plate photovoltaic panels using kirigami-inspired microstructures

US20160285410

2016-09-29

There is disclosed Kirigami-inspired structures for use in solar tracking applications. When coupled with thin-film active materials, the disclosed microstructures can track solar position and maximize solar power generation. In one embodiment, there is disclosed a photovoltaic system comprising a single-axis, or multi-axis solar tracking structure comprising a support structure made of a flexible material having a defined unit cell structure, and a flexible photovoltaic cell disposed on the support structure. There is also disclosed methods of making such structures in which the photovoltaic cell is mounted to the support structure by a direct-attachment bonding processes such as cold-welding.

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Precision bio-chemotronic system

WO2019040898

2019-02-28

A solid film structure formed of multiple solid film insert layers each having different functionality is provided. The solid film structure forms a bio-chemotronic structure having an actuator thin film layer with one or more low molecular weight organic active agents that may be activated, a sensor thin film layer that includes one or more sensors for measuring a direct or indirect response from a target to the one or more active agents, and a control thin film layer configured to individually control activation of the active agents in the actuator layer, e.g., according to a protocol.

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